KDOT Road to Pavement Preservation 2005 Maintenance Conference Kansas City, Missouri November 1, 2005
System 9,565 Centerline miles 25,872 Lane miles 4,932 Bridges 2,688,418 Population
National Survey 1995 & 2000 by NPHQ What Does the Public Really Want? 1. Smooth Driving Surface 2. Pavement Free of Obstructions (Such as Potholes, SNICE) 3. Well Marked (Stripes & Signs) Pavement Preservation covers 1 & 2
Factors in the KDOT Pavement Preservation Program 1. Commitment from Top Management (Selling Top Management) 2. A System to Measure Results/Progress & Setting Goals for the System 3. Keep Pavement Preservation Program Simple (Few Rules) 4. Champions Within the Agency 5. Keep Selection of Actions Open (One Size Does Not Fit All)
Commitment and Factors Concerning Top Management Long Term Through a Number of Administrations Willing to Mix Funds Preventative Maintenance, and Rehabilitation (Reconstruction Considered new Projects) Doing Maintenance (Preservation) Rather than New Projects
Commitment and Factors Continued Defend working on newer roads rather than deteriorated roads Overall Highway Needs are Great Results Are Slow in Coming
How KDOT Gained Commitment? In 1983 Sold the Concept that Having Good Smooth Surface was Necessary Noted the Lack of Any Contract Actions Showed the Condition of the System (New Pavement Management System) Offered to Give Up 300 Maintenance Positions by Attrition Buy Less MRA in District Budget Transfer Savings
KDOT Commitment Continued Secondary Selling Point was to Get KDOT Maintenance Forces Off the Pavement Top Management Agreed but Added Its Requirements 1. Wanted Something Done to 1000 Miles per Year 2. Only Enough Money to Average a ¾ Overlay on the Selected Locations It was A Start Dedicated Dollars
Pavement Measuring System PMS KDOT PMS became available in 1983 Data Collection Done Annually - All Approximately 10,000 Center Line miles - Done in Spring System is Divided into Approximately 11,500 One Mile Segments Each Segment is Measured for: Roughness (IRI), Rutting, Cracking, Faulting & Joint Distress
PMS & Pavement Preservation How does PMS work? Data Collection Data Reporting Data Analysis - Major Modification Support - Substantial Maintenance Support Could Spend Session Just on PMS
KDOT Measuring Systems & Goal Setting Depending on Surface Type (HMA or PCCP) Only 3 Elements Used to Determine a Composite Number Distress Number Represents a Measured Range
KDOT Measuring System & Goal Setting Continued When Combined from Individual Elements Create Distress States for Each Section Distress States Used to Determine Performance Levels Performance Levels Are: PL 1 Good, PL 2 Acceptable, PL 3 Poor Roughness or Ride Carries a Greater Weight (System is Ride Driven)
Using Benefit to Assign Performance Level FDBit Benefit 1.2 1 111 112 BENEFIT 122 212 332 322 213 123 221 131 233 311 113 Benefit 121 211 0.8 222 132 223 231 133 232 0.6 312 313 321 323 331 333 Good PL-1 Poor PL-3 0.4 0.2 0 111 112 113 121 211 122 212 213 123 221 131 222 132 223 231 133 232 233 311 312 313 321 322 323 331 332 333 Distress State
KDOT Goal Setting We Had a Starting Condition 1983 Condition Interstate: 49% in Level 1, and 14% in Level 3 Non Interstate: 43% in Level 1, and 19% in Level 3 Goal System: 72% in Level 1 and No More than 5% in Level 3 Funding Constraints
PMS & Pavement Preservation Outputs from PMS - Candidate Project Mileage for Each District - Candidate Project Locations for Out Years - Preliminary Scopes - Maps with Distress & Planned Projects Noted
Sample Candidate List/Map
KDOT Pavement Preservation Program (Simple Rules) Funding - Substantial Maintenance Funds Controlled by Chief Bureau C&M Funds Spent on a State Wide Basis PMS is Run to Optimize Benefits Received for Dollars Invested on Pavements PMS generates candidate list, proposed actions and Allots Miles to Each District
KDOT Pavement Preservation Program (Simple Rules) Continued Districts Develop Logical Projects from Selected Sections Results Become the Program for Next Year as to Location of Projects Action Shown is PMS Pick and is Tentative First Cut at Budget
KDOT Pavement Preservation Program (Simple Rules) Continued Annual 1-R 1 R Tour (March & April) 1-R R Team - District Engineer - Chief Materials & Research - Chief Construction & Maintenance Field Review Every Project Location Selected Review History of Project Use Engineering Judgment Select Individual Project Scopes/Actions
Agency Champion Many Champions Within KDOT Bureaus Districts Areas & Sub Areas Construction & Maintenance
Selection of Actions Willing to Try New Products One Size Does Not Fit All No Set Trigger Value Initiates an Action
Selection of Actions List of Action Being Used Bituminous Seal 1 to 4 4 Overlay Rout & Crack Seal 1 to 4 4 Inlay Heater Scarification Cold Milling Cold Recycle (4 ) Nova Chip Diamond Grind PCCP Patching Joint Repair Dowel-Bar Retrofit MSS SAF Interlayer Often a Combination of the Above
Results Non-Interstate System Interstate System
Success? Condition Over Time Interstate PL-1 Interstate PL-3 Noninterstate PL-1 Noninterstate PL-3 100.0% 93.1% 88.4% 89.2% 91.0% 90.5% 89.6% PL-1 are pavements in good condition; PL-3 are pavements in deteriorated condition. Data Labels are for the Noninterstate system. 90.0% 84.8% 80.0% 81.0% 78.7% 74.9% 70.0% 72.2% 72.5% 69.8% 71.9% 69.2% 63.1% 63.9% 66.3% 60.0% 61.9% 60.1% 57.6% 50.0% 49.4% 43.4% 40.0% CHP CTP 0.8% 0.9% 0.7% 1.2% 1.0% 1.4% 3.2% 3.5% 4.4% 5.7% 6.5% 7.4% 6.1% 1.5% 3.4% 5.3% 7.3% 5.3% 6.6% 7.4% 16.2% 11.6% 19.3% 30.0% 20.0% 10.0% 0.0% 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Percent of system miles in performance level
KDOT Goal Setting Continued The Original Goals Have Been Exceeded New Goals Have Been Established
New Goals Revised System Goals Interstate in 1999 85% or More in Level 1 Less than 3% in Level 3 Non-Interstate in 2001 80% or More in Level 1 Less than 5% in Level 3
Success Possible due to Commitment By: Legislature KDOT Top Management Bureau of Materials & Research Bureau of Construction & Maintenance District Engineers & Staff Area Personnel Sub-area Personnel
QUESTIONS?
Success? Condition Over Time Interstate PL-1 Interstate PL-3 Noninterstate PL-1 Noninterstate PL-3 100.0% 93.1% 88.4% 89.2% 91.0% 90.5% 89.6% PL-1 are pavements in good condition; PL-3 are pavements in deteriorated condition. Data Labels are for the Noninterstate system. 90.0% 84.8% 80.0% 81.0% 78.7% 74.9% 70.0% 72.2% 72.5% 69.8% 71.9% 69.2% 63.1% 63.9% 66.3% 60.0% 61.9% 60.1% 57.6% 50.0% 49.4% 43.4% 40.0% CHP CTP 0.8% 0.9% 0.7% 1.2% 1.0% 1.4% 3.2% 3.5% 4.4% 5.7% 6.5% 7.4% 6.1% 1.5% 3.4% 5.3% 7.3% 5.3% 6.6% 7.4% 16.2% 11.6% 19.3% 30.0% 20.0% 10.0% 0.0% 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Percent of system miles in performance level
All of Us at KDOT Believe in Pavement Preservation